Train-pipe coupling.



No. 787,630. PATENTED APR. 18, 1905.

' H. J. NOLL.

TRAIN PIPE COUPLING.

APPLIOATI N FILED AUG. 19, 1904.

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UNITED STATES iatented April is, 1905.

HENRY J. NOLL, OF MILWAUKEE, WISCONSIN.

TRAIN-PIPE COUPLING.

SPECIFICATION forming part of Letters Patent No. 787,630, dated April 18, 1905.

Application filed August 19, 1904. Serial No. 221,350.

To all whom it may concern:

Be it known that I, HEN'RY JOHN NoLL, a citi- Zen of the United States, and a resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Train-Pipe Couplings; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention has forits object to couple railway air-brake train-pipes without interlocking connection; and'it consists in certain peculiarities of construction and combination of parts hereinafter particularly set forth with reference to the accompanying drawings and subsequently claimed.

Figure 1 of the drawings represents a front elevation, partly in section, through the line 1 1 in Fig. 2 and illustrates a fragment of a railway-car provided with a train-pipe couping in accordance with my invention; and Fig. 2, a sectional view of the same through the line 2 2 in Fig. 1.

Referring by letter to the drawings, A in-- dicates a fragment of a railway-car, and B a socket in suspension from the car. The ball end Z) of a shank c engages the socket B, and said shank is a prolongation of a box 0, containing a sliding barrel 1) and spiral spring E, this spring being under compression between the inner ends of the box and barrel. A stopshoulder (Z of the barrel limits forward play of the same in the box, and said barrel has a depending nipple Fin communication with its bore. The nipple has play in a longitudinal bottom slot 0 of the box, anda train-pipe G is coupled to the nipple. The forward end of the barrel D is expanded in all directions and trued to present a smooth face, having a slot f therein intersecting the bore of the remainder of said barrel, said bore being central of said slot. 1

The box G has vertical and lateral play within the confines of a bracket H depending from the car and is suspended by a cable or other suitable means from one end of a lever I, fulcrumed in said car and having a counterweight J hung from its other end. The bottom of the car is provided with an aperture in which the box and lever connection has its play,and it is preferable, as herein shown, to inclose the lever and Weight by a housing K in said car. Depending from the bracket H is a tubular guide L for another weight,M, connected by a flexible device it with the under side of the box C, and the flexible hanger for the latter Weight has play in an aperture of the otherwise-closed upper end of said guide. The Weight J counterbalances the box, its contents, and the Weight M, said box being free to play at its front end in a vertical direction. The box is also free to play laterally at its front end against resistance of the weight M, that operates to automatically center said box counterbalanced by the Weight J aforesaid. However, means other than what isherein shown may be utilized for counterbalancing and automatically centering the box.

When cars are coupled, the opposing barrels D of a train-pipe coupling are moved one by the other to further compress the spring E back of each, the abutting ends of said barrels being then in close frictional contact, but free to play one against the other in all directions to compensate for the movements of said cars while running. Because of the slots fin the opposing ends of the coupling-barrels there is no interference with the flow of air in the connected train-pipes when said barrels have vertical or lateral play, or both, one against the other. g

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is a l. A train-pipe coupling consisting of a box in ball-and-socket counterbalanced self-centering connection with a car, a barrel having sliding engagement with the box, a depending barrel-nipple engaging a play-slot in said box, and a spring under compression in the aforesaid box against the inner end of the barrel;

-the outer projectingend of said barrel being depending nipple engaging a slot in the same, In testimony that I claim the foregoing I a spring under compression in the aforesaid have hereunto set my hand, at Milwaukee, in box against the inner end of the barrel, a the county of Milwaukee and State of W'isweight in suspension by a flexible device from cousin, in the presence of two witnesses.

the forward portion of the box, and a guide HENRY J. NOLL. for the flexible device and suspended weight, Witnesses: the outer projecting end of the barrel being N. E. OLIPHANT,

provided with a slot intersecting its bore. GEO. W. YOUNG. 

